Improvement in lamps



MENTZEL a1 GEDDES.

Lamp4 Burner.

Patented m1111111, 1862.

IMvenl-ors;

N. Fumes. P1111111-L111111g111111111. 111.1111111111011 n. c.

PATENT OFFICE.

WILLIAM MENTZEL, ALEXANDER GEDDES, AND JAMES W. GEDDES, OF

BALTIMORE,

MARYLAND.

IMPROVEMENT IN LAMPS.

Specification forming part of Letters Patent No. 34,63% dated March 11, 1862.

To @ZZ whom i may concern:

Be it known that we, WILLIAM MENTZEL, ALEXANDER GEDDEs, and JAMES W. GEDDEs, of Baltimore, in the State of Maryland, have invented a nevv Mode of Burning Coal or Carbon Oil Without the Aid of a Chimney; and We do hereby declare that the following is a full and eXact description thereof, reference being had to the accompanying drawing, and to the letters of reference marked thereon.

The nature of our invention consists of an inside jacket-tube a a o, a, surrounding the Wick-tube b b b b, perforated at the top c c a half-inch or more down and fitting the wiektube b closely at the bottom d d to prevent a rush of cold air coming in at that point,which jacket-tube, with the perforated bottom e e and outside cap F F F F, forms an aircham ber. The air coming in contact with the heated metal forming the chamber impartsl its oxygen, and is thence thrown outthrough theperforations c c at top of jacketftube in regular drafts at the point ot' combustion, thus supplying the flame with suicient oxygen to burn coal or carbon oil completely without the aid of a chimney, and largely decreasing the consumption of oil, the top of cap on either side of the opening for the exit of the flame projecting, more or less, over the jacket-tube, and on one side nearly or quite over the wick for the purpose of increasing the heating-surface and spreading and steadying the flame. If necessary to be placed in a strong draft of air, or if a shade uis required, a glass cup is used (inverted, as per drawing) to prevent fanning the flame, and to which a shade nay be readily attached.

What We claim as our invention, and desire to secure by Letters Patent, is-

The jacketftube o a a a., as described, in combination with the perforated bottom E E, and outside cap F, forming an air-chamber for regular drafts of heated air through the perforations of the jacket-tube c c for the sup-- ply of oxygen at the 'point of combustion.

In presence of'-` H. B. SIEADMAN, WM. EMoRY. 

